IOT card host detection process

Im not seeing much in the way of documentation on debugging a IOT card we designed, basically a usb radio card, that when plugged into any windows / linux machine is seen find on the usb bus. so wheres a more thorough doc on IOT, host card detection and how to manage it from legato inside the mango

we plug it in an it gets no power however we tested the mango iot slot which is powered
theres not much in the way of docs stating what gpios go where, how to trigger them to reset or not…

maybe im just not seeing it, or looking in the right place…

wed like to bring this board up to prove the concept

Have you reviewed this doc:
http://mangoh.io/iot-card-resources-documentation
All other vendors/builders use it. Not sure exactly what the issue is unless we see what you designed or tell us what is not clear on the doc